A man or woman is said to be absorbed when the water has total control of him, and he has no control of the water. A swimmer moves around willfully. An absorbed being has no will but the water's going. Any word or act is not really personal, but the way the water has of speaking or doing.
As when you hear a voice coming out of a wall, and you know that it's not the wall talking, but someone inside, or perhaps someone outside echoing off the wall. Saints are like that. They've achieved the condition of a wall or a door.
Of course, I'm hardly a saint. And certainly not a wall or door. But I was contented day after day, deeply absorbed in the everyday activity of the retreat.